Re: lua decoder accessing info from layers above

[Guy Harris <gharris () sonic net>]

On Oct 12, 2020, at 5:33 PM, John Thacker <johnthacker () gmail com> wrote:

> If all you need to know is whether it was called from TCP or UDP, then a typical approach is to create slightly 
> different dissector functions,

...or, in that particular case, slightly *less* different functions, given that UDP provides a packet-based service (so 
that packet boundaries are provided for you, unless you have to send packets that don't fit in a UDP datagram and add 
your own reassembly - but, even there, *fragment* boundaries would probably be provided by UDP), while TCP provides a 
byte-stream service (with *no* packet boundary information).

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